arrays and equal groups
Properties
Find the product
100
Write an equation to find the total number of flowers
_____x_____=______
3 x 3 = 9
100
The product of any number and zero is zero.
What property is this?
Zero property
100
3 x 0=
0
200
There are 4 baskets. Each basket has 9 apples.
Show equal groups and write the multiplication equation.
How many apples are there in all?
4 x 9 = 36
200
The product of any number multiplied by 1 is that given number.
What property is this?
Identity property
200
10 x 1=
10
300
Bob has 2 rows of plants with 3 plants in each row. How many plants does Bob have in all?
Draw an array to solve.
answer with label:______x_______=________
2 x 3 = 6
300
Numbers can be multiplied in any order and the product stays the same.
What property is this?
commutative property
300
8 x 5 =
40
400
An array has 4 rows of 2 stars.
Write the multiplication equation.
How many stars are there in total?
4 x 2 = 8
400
The property being shown in this example is...
3 x 5=15 so 5 x 3=15
commutative property
400
10 x 4=
40
500
A student says “2 + 2 + 2 + 2 is the same as 4x2.”
Is the student correct? Why?
2 + 2 + 2 + 2 = 8
4 x 2 = 8
There are 4 groups with 2 in each group
500
Write an equation that shows the identity property
? x 1 = ?
500
5 x 9=
45